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          线性表
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        <h2 id="线性表"><a href="#线性表" class="headerlink" title="线性表"></a>线性表</h2><p><strong>由n个数据特性相同的元素构成的有限序列</strong>称为线性表，n=0时称为空表。特点：</p>
<ul>
<li>存在唯一的一个被称作“第一个”的数据元素；</li>
<li>存在唯一的一个被称作“最后一个”的数据元素；</li>
<li>除第一个之外，结构中的每一个数据元素均只有一个前驱；</li>
<li>除最后一个之外，结构中的每一个数据元素均只有一个后继。</li>
</ul>
<span id="more"></span>

<h3 id="线性表的顺序表示"><a href="#线性表的顺序表示" class="headerlink" title="线性表的顺序表示"></a>线性表的顺序表示</h3><p>线性表的书序表示是指<strong>用一组地址连续的存储单元依次存储线性表的数据元素</strong>，这种表示也称作线性表的顺序存储结构或顺序映像。这种存储结构的线性表被称为<strong>顺序表</strong>，其特点是：<strong>逻辑上相连的数据元素，其物理次序也是相连的</strong>。</p>
<ul>
<li><strong>查找：</strong>顺序表中查找一个数据元素时，其时间主要耗费在数据的比较上，而比较的次数取决于被查元素在线性表中的位置。<ul>
<li><strong>平均查找长度</strong>：$ASL=\sum^{n}_{i=1}P_iC_i$;其中，$P_i$是查找第<code>i</code>个元素的概率，$C_i$为找到其中关键字与给定值相等的第<code>i</code>个记录时，个给定值已进行过比较的关键字个数。</li>
</ul>
</li>
<li><strong>优点：</strong>顺序表可以随机存储表中任一元素，其存储位置可用一个简单、直观的公式来表示。</li>
<li><strong>缺点：</strong><ul>
<li>顺序表在做插入或删除操作时，需移动大量元素。</li>
<li>由于数组有长度相对固定的静态特性，当表中数据元素个数较多且变化较大时，操作过程相对复杂，必然导致存储空间浪费。</li>
</ul>
</li>
</ul>
<h3 id="线性表的链式表示"><a href="#线性表的链式表示" class="headerlink" title="线性表的链式表示"></a>线性表的链式表示</h3><p>线性表链式存储结构的特点：<strong>用一组任意的存储单元存储线性表的数据元素</strong>（这组存储单元可连续，可不连续）。</p>
<h3 id="参考链接"><a href="#参考链接" class="headerlink" title="参考链接"></a>参考链接</h3><font size=2>

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